H05B 45/33
Pulse-amplitude modulation [pam]
Official title: Pulse-amplitude modulation [PAM]
H05B45/33 (Pulse-amplitude modulation [pam]) appears on 44 US grants and 57 published applications in this corpus.
Search patents in H05B- Granted patents
- 44
- Published applications
- 57
- Assignees
- 38
- Inventors
- 136
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 4 |
| 2004 | 0 | 0 |
| 2005 | 1 | 4 |
| 2006 | 1 | 2 |
| 2007 | 2 | 3 |
| 2008 | 2 | 2 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 3 | 1 |
| 2012 | 4 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 2 |
| 2022 | 3 | 5 |
| 2023 | 0 | 10 |
| 2024 | 12 | 4 |
| 2025 | 3 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lighting circuit24 Mar 2026US 12,588,122 B2Signify Holding B. V.
- Display device and control method therefor having low grayscale mode and high grayscale mode6 Jan 2026US 12,518,673 B2Samsung Electronics Co., Ltd.
- LED headlight assembly and control23 Sep 2025US 12,426,138 B2Tesla, Inc.
- LED driving circuit and driving method thereof18 Feb 2025US 12,232,230 B2Lx Semicon Co., Ltd.
- LED driving circuit and its driving method11 Feb 2025US 12,223,884 B2Lx Semicon Co., Ltd.
- Lighting device control system8 Oct 2026US 2026/0313774 A1Zhengzhou Dewenwils Network Technology Co., Ltd.
- Method and illumination unit for illuminating a detection area of a code reader18 Jun 2026US 2026/0173234 A1VITRONIC Machine Vision GmbH
- Light emitting apparatus28 May 2026US 2026/0150163 A1Seoul Semiconductor Co., Ltd.
- Led headlight assembly and control4 Dec 2025US 2025/0374398 A1Tesla, Inc.
- Radiation source driver for accelerated modulation in an optical wireless communication system15 May 2025US 2025/0158718 A1Signify Holding B. V.
Most cited
By later US patents
- Lighting methods and systems641US 7,178,941 B2Color Kinetics Incorporated · 2007
- Light-emitting diode based products436US 7,064,498 B2Color Kinetics Incorporated · 2006
- Systems and methods for controlling programmable lighting systems339US 7,233,831 B2Color Kinetics Incorporated · 2007
- Tile lighting methods and systems282US 7,358,929 B2Philips Solid-State Lighting Solutions, Inc. · 2008
- Illumination control system238US 6,963,175 B2Radiant Research Limited · 2005